Physics
- Physics
Scientists Say: Force
When an object experiences a force, its change in motion — or acceleration — depends on its mass.
- Physics
Scientists Say: LED
LEDs, or light-emitting diodes, light up TV screens, traffic lights and many other devices used in daily life.
- Earth
Amateur astronomers reveal clues to a mysterious double aurora
Stunning images from citizen scientists show an unusual pattern in ‘Northern Lights.’ They offer clues that may help astronomers better understand a curious red glow.
- Chemistry
Cool Jobs: Scientific glassblowers shape science
Glass has played a major role in research for centuries. Today’s artisans work at the forefront of discovery.
- Physics
This leaping robot can out-jump anything — animal or machine
Such a bounding bot might someday help explore the moon.
- Physics
Explainer: How the Doppler effect shapes waves in motion
The Doppler effect describes how waves are compressed or stretched when their source — or receiver — is moving.
- Chemistry
Scientists Say: Pigment
From fruits to fur to fine art, many materials get their colors from compounds called pigments.
- Physics
Let’s learn about music
Researchers are delving into how instruments and spaces shape our experience of music, and how computers could play a role in the future of music-making.
- Chemistry
Scientists Say: Proton
These positively charged particles are important building blocks in atoms.
- Physics
Scientists used lasers to make ‘smoke rings’ of light
Physicists had a bright idea: Make light into swirling, ring-shaped vortices, similar to smoke rings or bubble rings.
- Physics
You might someday ‘wallpaper’ your bedroom with this loudspeaker
This thin, flexible and lightweight loudspeaker could reduce noise in loud spaces. It also might enable listeners to experience sound in new ways.
- Physics
When dominoes fall, how fast the row topples depends on friction
Two types of friction help determine how quickly a line of dominoes collapses, computer modeling shows.
